Author Question: An extinct volcano is one that:a. existed during a past geological period or epoch. b. has not ... (Read 106 times)

EY67 · **on:** Jul 15, 2018

An extinct volcano is one that:a.
existed during a past geological period or epoch.
b. has not erupted during recorded history.
c. has shown no evidence of activity over recorded history.
d. has not erupted during recorded history and has shown no evidence of activity over
recorded history.
e. all of these.

Question 2

One indicator of an impending volcanic eruption that precedes all Hawaiian volcanic eruptions is a
continuous ground motion called ___________________ _. Fill in the blank(s) with the appropriate word(s).